#define _CRT_SECURE_NO_WARNINGS 1

#include <stdio.h>


int main()
{
    int num = 0;
    while (scanf("%d", &num) != EOF)
    {
        if (num % 2 == 1)
            printf("Odd\n");
        else
            printf("Even\n");
    }
    return 0;
}
